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The hole in the paper can vary in size and shape. We usually relate this to a function of the tune... a wobbling, unstable bullet will make a larger, non-round hole than a bullet that is perfectly "asleep". The proper way to use the scoring caliper is to center the engraved ring around the...

In group and score shooting you need to be able to pick up the rifle vertically out of the rest. If the rest is not attached to the rifle it would be legal, though doubtfully competitive. It it were attached to the rifle it would not be legal. Rod

The rules about clamping a block to the bench in front of an unlimited gun did change since the #37 book -- I believe at the 2009 meeting. We voted to allow the block in front (and not above) so long as it was not attached to the gun in any way. I use one as a little extra insurance against my...

There were some limited results on this thread. I didn't make it, but talked to a few folks who were there. Wind was howling, large groups were the norm. Like always, a few folks seemed to figure it out and shoot some incredible groups given the conditions...

We saw the bullet wake pattern quite a bit at the St Louis Nationals a few years ago. The air was so dead that you could watch the first few shots after "commence fire" cause tails to jump several flags down the range. In some cases, it would effect flags two rows over. Rod

Sorry about the loss Larry -- we'll all keep an eye out. You were in Florida at the time? An MO from a range director here for our large shotgun shoots... Thieves casually observing the event would note the cars and plate numbers of the competitors (sometimes even marking the cars with a...

I don't... the folding hook was on the gun when I got it. The gunsmith I bought it from had used the gun for a local indoor winter league (back when towns used to have such things). I still have all the accessories he gave... the offhand palm rest, homemade slings, sight aperatures, etc but not...

Mine has had an accessory rail added to the bottom of the stock and a folding butt hook, other than that is original. The serial number is probably the most collectible part. In any case, I won't be selling, trading, or doing any more irreversible changes to it -- it was the very first gun I...

Density altitude (DA) is a calculation typically used in aviation to combine the effects of temperature, elevation, barometric pressure, and humidity all into one number to help evaluate how an airplane will perform in a given weather scenario. The general rule is that most airplanes have better...

I was looking at one of my extra LV stocks and wondering what to do with it when it hit me that I have a 98% original Model 37 Remington in the closet... figured it was time to take it out and fit it to a BR stock. Is anybody using a rifle based off the 37 platform? Any tips on what to do set it...

My answer (so far) to the original post is that I try to shoot each barrel enough in real matches to know it's real potential. Then I try to use a barrel that is good enough to place where I want in any match I shoot in. I may need my best barrel for even a small match if I want to win and know...

Been absent from the thread a bit, but I gotta agree with Mike... I publish my notes, not because I believe I know how tuners work, but because I know how my tuner works for me. My "why it works" is just opinion. But maybe my results will give the real engineers some additional data to work with...

I spent a couple years looking at VarmintAls' models before I decided they didn't explain everything I was seeing. Now, I'm not an engineer (I have a brother for that so I don't even have to pretend), but I have been doing numerical analysis programming off and on for 30 years, and I truly know...

The stock in front is just poplar from Home Depot... at 2lbs 5oz, it is too heavy for LV but may work out very nicely for a HV gun. I built it out of "junk" wood to test some of my woodworking setups and was a bit surprised how it ended up. The two stocks in the background are Alaskan Yellow...

I saw in some research about the distortion that even a few extra pounds on torque on the action screws can put on an action. Got me to thinking about building in a guitar-string link between the fore-end and butt that I could tighten to re-tune the stock. It might sing! Rod

My load development doesn't follow the full-blown ladder testing treatment -- probably a topic for another thread. I usually trust my gun enough to just calibrate the load by watching the vertical in the group. Loads that are on a node boundary seem blow up in every direction. If you subscribe...

Last summer I convinced Audrey it would be a good idea to build my own stocks... starting with a Dakota stock duplicator. To anyone has has ever built a stock, my hat is off to you. You all know that a duplicator doesn't work like that, me too now. I started out just wanting to make a twin to...

Thanks Gene B. It was that day in your tunnel that started this whole journey for me. Before that I was just "shooting in the dark", probably still am. The worst thing is that in my 4 moves in the last three years, I have misplaced all my match logbooks. I still have the targets, but not the...

BIG CORRECTION, Got my directions messed up. I said OUT, when I meant IN for temps that are increasing.... didn't notice that. Sorry. (I'll edit the earlier posts!) Rod

A couple of other thoughts... First, I only have experience with my Beggs (bag gun) and Beggs-style (rail gun) tuners. It would be interesting to see if the results were the same for other styles (different weights, past the muzzle, etc.) Second, the groups in the chart above were the very...